Home / 1,539.96-2,122.62-1,190.04

Finding the Fourth Proportional to 1,539.96, 2,122.62 and 1,190.04

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Solution

The fourth proportional to 1,539.96, 2,122.62 and 1,190.04 is: 1,640.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.96 : 2,122.62 = 1,190.04 : x
  2. Step 2: Convert to fraction form
    1,539.96/2,122.62 = 1,190.04/x
  3. Step 3: Cross multiply
    1,539.96x = 2,122.62 × 1,190.04
  4. Step 4: Simplify right side
    1,539.96x = 2,526,002.70
  5. Step 5: Solve for x
    x = 2,526,002.70/1,539.96
  6. Step 6: Final answer
    x = 1,640.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.